公开(公告)号：US5056928A

公开(公告)日：1991-10-15

申请号：US577760

申请日：1990-09-05

申请人： Kazuichi Aoki ,  Yukihiro Saiki ,  Katushtoshi Tanno ,  Yasuhiko Shiinoki ,  Tomoshige Hori ,  Kensuke Itoh ,  Tetsuo Nakamura ,  Osato Miyawaki

发明人： Kazuichi Aoki ,  Yukihiro Saiki ,  Katushtoshi Tanno ,  Yasuhiko Shiinoki ,  Tomoshige Hori ,  Kensuke Itoh ,  Tetsuo Nakamura ,  Osato Miyawaki

IPC分类号： G01N11/00 ,  G01N25/18 ,  G01N27/18

CPC分类号： G01N27/18 ,  G01N11/00 ,  G01N25/18

摘要： In a subject fluid, there is placed an apparatus for measuring a change in state of the fluid, said apparatus having a tubular body which, in turn, contains therein at least one heating sensor employing so-called hot wire method. A quantity of the fluid is introduced into the tubular body and a temperature of the heating sensor is measured by the heating sensor itself as the quantity of the fluid having been introduced into the tubular body is maintained in a state of laminar flow or a static state. The laminar flow is generated by fluid impeller means such as impeller vane, screw-type vane or propeller vane assembly or uniaxial eccentric pump. The static state is maintained y providing gateway means for passage of the fluid into or out from the tubular body and closing such gateway means. A temperature of the fluid having been introduced into the tubular body and maintained in said laminar or static state is measured and discharged out from the tubular body upon completion of said temperature measurements. A change in state of the fluid is determined based on the temperatures of the fluid and the heating sensor.

摘要翻译： 在目标流体中，设置有用于测量流体状态变化的装置，所述装置具有管体，该管体又包含至少一个采用所谓热丝法的加热传感器。 一定量的流体被引入到管状体中，并且通过加热传感器本身测量加热传感器的温度，因为已经引入到管状体中的流体的量保持在层流状态或静态状态 。 层流由叶轮叶片，螺旋叶片或螺旋叶片组件或单轴偏心泵等流体叶轮装置产生。 维持静态，提供用于使流体从管状体进入或流出并关闭这种网关装置的网关装置。 在完成所述温度测量之后，测量已经引入管状体并保持在所述层状或静态的流体的温度并从管状体排出。 基于流体和加热传感器的温度来确定流体状态的变化。